tdf#115813 Get correct adjust value from XY handle of ooxml-shape

If an adjust value is not directly bind to a handle parameter but
via formulas, the calculation of the adjust value depends on the
individual shape. The error was, that one calculation method was
applied to any OOXML-shape. User noticed, that handles did not
stick to the position, where they are released but jumped to
unexpected positions. The patch calculates guide formulas backwards
to get an adjust value. The patch solves the problem for preset
OOXML-shapes until some day a general method for any shape is
implemented.

Change-Id: I1a47082d5110a63530a273665d80348c119dc08b
Reviewed-on: https://gerrit.libreoffice.org/71258
Tested-by: Jenkins
Reviewed-by: Regina Henschel <rb.henschel@t-online.de>